Writing takes a tremendous amount of time and effort to just gain basic competency, let alone master. You have to put in a lot of butt-in-seat time.
Though I've gotten paid to write for a technology website, I am not a strong writer. But, I currently spend about 10 hours a week writing for my blog and other mediums and am continuously trying to get better.
Assuming one is putting in the time and effort, the next thing that will most quickly speed improvement is having an editor or other competent reviewer provide critical feedback, including on grammar, structure, and style. Then, keep rewriting a piece until you are no longer unhappy with it.
Though I've gotten paid to write for a technology website, I am not a strong writer. But, I currently spend about 10 hours a week writing for my blog and other mediums and am continuously trying to get better.
Assuming one is putting in the time and effort, the next thing that will most quickly speed improvement is having an editor or other competent reviewer provide critical feedback, including on grammar, structure, and style. Then, keep rewriting a piece until you are no longer unhappy with it.